Source:http://linkedlifedata.com/resource/pubmed/id/18250754
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
2008-2-5
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pubmed:abstractText |
Particle-size distribution and the concentration of polystyrene particles suspended in water were accurately recovered from the inversion of spectral extinction data measured with a commercial spectrophotometer. The instrument was modified by placing a spatial filter in the collection optics to prevent low-angle scattered light from affecting the measurement of transmitted power. The data were inverted by use of a nonlinear iterative algorithm. When the extinction coefficient is measured in the lambda range of 0.3-1.1 microm, the particle distributions can be retrieved over a diameter range of 0.6-2.8 microm for a wide interval of sample concentrations. The average diameters are recovered with a precision of better than +/-1% and with accuracies consistent with the uncertainties by which the nominal diameters are known. The relative standard deviations of distributions corresponding to monodisperse samples are +/-5-10%, whereas the accuracy on the measured concentrations is approximately 5%.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:status |
PubMed-not-MEDLINE
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pubmed:month |
Feb
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pubmed:issn |
0003-6935
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
1
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pubmed:volume |
36
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
885-91
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pubmed:year |
1997
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pubmed:articleTitle |
Commercial spectrophotometer for particle sizing.
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pubmed:affiliation |
Institute of Mathematical, Physical and Chemical Sciences, University of Milan at Como, via Lucini, 3-22100 Como, Italy.
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pubmed:publicationType |
Journal Article
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